Home / 5,021.79-6,930.12-2,783.71

Finding the Fourth Proportional to 5,021.79, 6,930.12 and 2,783.71

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Solution

The fourth proportional to 5,021.79, 6,930.12 and 2,783.71 is: 3,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.79 : 6,930.12 = 2,783.71 : x
  2. Step 2: Convert to fraction form
    5,021.79/6,930.12 = 2,783.71/x
  3. Step 3: Cross multiply
    5,021.79x = 6,930.12 × 2,783.71
  4. Step 4: Simplify right side
    5,021.79x = 19,291,444.35
  5. Step 5: Solve for x
    x = 19,291,444.35/5,021.79
  6. Step 6: Final answer
    x = 3,841.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.